'Cell stage' diaporamas de présentation

The Blazers Student #1, Student #2, and Student #3 LB144 F06

Comparative Biology. The Blazers Student #1, Student #2, and Student #3 LB144 F06. Comparative Development. Strongylocentrotus purpuratus Xenopus laevis Oryzias latipes. Sea Urchin. Unfertilized egg viewed at 400x magnification on compound microscope 0 hours live specimen. Sea Urchin.

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8 cell stage

8 cell stage. 2 cell stage. blastocyst. morula. Male & female pronucleus. Fertilization ampulla. revision. Polar trophoblast. Zona pellucida. inner cell mass. blastocoele. trophoblast. Early blastocyst. late blastocyst. revision. Day 8 Trophoblast.

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Chapter 47

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Animal Development

Animal Development. Chapter 46 & 47. Fig. 46-6. Vocabulary. Zygote: Single diploid cell Fertilization: Sperm & egg combine Ovulation: Egg is released from the ovary Spermatogenesis: Formation of sperm Oogenesis: Formation of the egg. Anatomy. Anatomy. Oviduct. Ovary. Uterus.

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1 mm

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1 mm

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Recurrent Pregnancy Loss-LPD

Recurrent Pregnancy Loss-LPD. Dr. USHA REDDY MRCOG. ?. Why LPD. Abortion & Infertility Profound personal tragedy a formidable challenge to physician.

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Cloning Robert Streiffer, Ph. D. April 26, 2005

Cloning Robert Streiffer, Ph. D. April 26, 2005. Department of Philosophy, School of Letters and Sciences Department of Medical History and Bioethics, Medical School Department of Medical Sciences, School of Veterinary Medicine University of Wisconsin, Madison

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Chapter 47

Chapter 47. Animal Development. A Body-Building Plan for Animals It is difficult to imagine That each of us began life as a single cell, a zygote. 1 mm. Figure 47.1. A human embryo at approximately 6–8 weeks after conception. As recently as the 18th century

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Developmental Stages in an Amphibian

Developmental Stages in an Amphibian. Animal development. Gut. Cell movement. Zygote (fertilized egg). Eight cells. Blastula (cross section). Gastrula (cross section). Adult animal (sea star). LE 21-4. Cell division. Morphogenesis. Observable cell differentiation. Seed leaves.

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Reproductive Technology

Reproductive Technology. Chapter 21. Assisted Reproduction. When a couple is sub-fertile or infertile they may need Assisted Reproduction to become pregnant: Replace source of gametes Sperm, oocyte or zygote donors Aid in the fertilization process Replace the uterus Surrogate mothers

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EMBRYO SEXING IN FARM ANIMALS

EMBRYO SEXING IN FARM ANIMALS. Sanjeev Sharma*, Aarti Bhardwaj $ , Shalini Jain # and Hariom Yadav # *Animal Genetics and Breeding Division, # Animal Biochemistry Division, National Dairy Research Institute, Karnal-132001, Haryana, India

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Early Vertebrate Development

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CLEAVAGE

CLEAVAGE. 1. Ciona intestinalis. http://www.mun.ca/biology/scarr/Garstang_Hypothesis.htm. http://biodev.obs-vlfr.fr/recherche/biomarcell/ascidies/Anim-fromegg.htm. 2. http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=.07EmbIt9ELpT-YFA1rDieIO4AMQFlmlIwWj.

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Chapter 11- Fish and mammals

Chapter 11- Fish and mammals. Large broods Breed year-round Easy and cheap Transparent embryos Develop outside mother Early development complete in 24 hours. 1. Zebrafish are becoming the sweetheart of developmental biologists. A. Cleavage. 6. Three cell populations.

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Figure 32.1

Figure 32.1. Zygote. Cleavage. Figure 32.2-1. Eight-cell stage. Zygote. Cleavage. Blastocoel. Figure 32.2-2. Cleavage. Eight-cell stage. Cross section of blastula. Blastula. Zygote. Cleavage. Blastocoel. Figure 32.2-3. Cleavage. Gastrulation. Eight-cell stage.

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Do Now Identify each of the cells in the diagram and indicate the

Do Now Identify each of the cells in the diagram and indicate the Human chromosome number of each. Sperm (23). Egg (23). Zygote (46). How do we go from a zygote (a single cell) to a multicellular organism? (hint: think about a process used to increase cell#).

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EMBRYOLOGICAL DEVELOPMENT OF FISH FIS 301

Dr. Akinyemi, A. A. Department of Aquaculture and Fisheries Management University of Agriculture, Abeokuta, Nigeria. EMBRYOLOGICAL DEVELOPMENT OF FISH FIS 301. What is Fertilization?.

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Tiger Swallowtail Pterourus glaucus

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R Kuroda et al. Nature 000 , 1-5 (2009) doi:10.1038/nature08597

Chirality-reversed eight-cell stage embryos developed to snails with an oppositely-coiled shell and visceral situs inversus. R Kuroda et al. Nature 000 , 1-5 (2009) doi:10.1038/nature08597.

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